Invisible pin



D. LE R. MANTLE.

INVISIBLE PIN.

APPLICATION FILED JUNE I. 1919.

Patented Nov. 11, 1919.

DAVID LE ROY MAN TLE, 0F MOALESTER, OKLAHOMA.

INVISIBLE PIN.

Specification of Letters Patent. Patented NOV. 11, 1919.

Application filed June 7, 1919. Serial No. 302,374.

To all whom it may concern:

Be it known that 1, DAVID Ln ROY MANTLE, a citizen of the United States, residing at McAlester, in the county of Pittsburg and State of Oklahoma, have invented certain new and useful Improvements in Invisible Pins, of which the following is a specification, reference being had to the accompanying drawings,

This invention relates to an improved invisible pin, and an object of the invention is to provide a device of this kind, which, when fastened to the bosom of a shirt, the pin is entirely out of sight.

A further object of the invention is to provide a pin of this kind including two prongs, one to be secured to a part of the bosom of the shirt that ordinarily carried the buttons, the other prong to engage that portion of the shirt that usually has the buttonholes, the pin being arranged whereby it is invisible.

The invention further aims to provide an invisible pin particularly adapted to all garments, whereby opposite parts of the garment can be easily and quickly fastened by means of the pin, thereby taking the place of buttons, hooks and eyes, etc. I

A further object of the invention is to provide an invisible pin particularly adapted as a substitute for buttons, hooks and eyes and the like, so as to be particularly adapted for washable garments.

It is a well known fact that buttons, hooks and eyes garments are lost when the garments are laundried; therefore an object of the present invention is to provide a fastener or invisible pin, which is detachable from the garment when it is sent to the laundry, thereby not only avoiding the loss of the fastener or the pin, but also enabling the garment to be more thoroughly cleaned, and also preventing the garment from being torn, which would be the case with buttons, since the buttons would tend to pull a piece from the garment when caught by moving parts of a washing machine.

A further object of the invention is to provide an invisible pin which can be easily and other fasteners on washable manipulated with one hand, in order to fasten or unfasten the pin.

A further object of the invention is to provlde an invisible pin comprising a pin frame, which may be preferably diamond shaped, but not necessarily, including a pair of prongs spanning the frame at its greatest dimension, in combination with holding means at one end of the frame toretain the pins in their fastened positions.

While the design and construction at present illustrated and. set fort-h is deemed preferable, it is obvious that as a result of a reduction of the invention to a more practical form for commercial purposes, the invention may be susceptible to changes, and the right to these changes is claimed, provided they are comprehended Within the scope of what is claimed.

The invention comprises further features and comb-inationof parts, as will be hereinafter set forth, shown in the drawings and claimed.

In the drawings:

Figure 1 is a perspective view of the im-' proved invisible pin constructed in accordance with the invention.

Fig. 2 is a longitudinal sectional view on line 22 of Fig. 1.

Fig. 3 is a view of a portion of the garment, showing the pin in dotted lines as applied, illustrating the fact that it is invisible when in use.

Fig. 4 is a detail view of a blank which forms the clamp or holder 11.

' Fig. 5 is a detail view in side elevation of one end of the pin more clearly showing the details of the clamp or holder.

Fig. 6 is a detail view showing long and short prongs 9, and correspondingly shaped suitable sockets or keepers 10 of the sheet metal clamp or holder.

Referring to the drawings, 1 designates the invisible pin as a Whole, and which is constructed of a single length of spring wire, whereby a diamond-shaped frame 2 is constructed. a

The substantially central portion of the body of the wire is bent to form a spring coil 3, the portions of the Wire beyond the coil 3 are arranged the sides 4: of the of the frame.- Theportions l2 and shaped to provide frame. These sides 4 each consist of the portions 5 and 6, which extend at obtuse angles to each other. Where these portions each other spring coils 7 are'provided said coils acting to restore the sides ofthe rame to their normal positions,- subsequently. to-

relieving pressure upon the opposite sides converge toward each other and are twisted together? once or twice as shown at- 8, and the-portions ofthe. wire beyond the;-tw1st 8.-;

constitute prongs .9, which span the frame between its greatest dimension. When the pin is in. use, the prongs 9 engage through the garment. and 1 their sharpened extremities; engage: keepers :10, which are carried by and form partsof a" sheet metal clamp or holder: 11, .Which is carried ,upon the spring coil 3,- to reinforce-- the sam epanolto preventbexcessive destruction of the sides of'the holder are engaged by the sidesof'the frame, in.

. parts, was to orderfto limit them. in their. outward. eX- pand ing. actions. In order to release'the eXtremities-of-the prongs pressure may be appliedon the opposite; sides of the frame adjacent. the spring coils. '(fby means of the thumb and forefinger, causingthe opposite.

ends of the frame atthe greatest dimension to move fromeach other, which-will remove the terminals of the. prongs from their keepers. The prongs 9 'will then spring outwardly, thereby permitting them to be detaohedfrom the garment. V s

In order to make the frame ofthe' pin- -firm and rigid, it is foundnecessary to-ren- -.-der thetwist 8 a fixed: joint between. the

twisted. parts. This may be accomplished in many different ways, and itis'the; aim not to be limited. to'any'oneparticular manner of renderin the twist firm. However,

be made. firm and. solid, by welding the; parts of, the; twist, or.- I applyso they may interlock, or. if. desired, cient: pressure may, be applied. on the twisted cause them to-firmly bind together,.thereby1insuring, rigidity or firmness.. It is to be understoodthat any other.

. method may be employed -forrendering the construction, it will be seen that one opposite portions of twisted parts; rigidlyfixed' relative to each other, without departing from the scope; of the invention.

1.0 are of different lengths, and the V prongs 9 are of the samelength- Byvirtue Ofl of; the prongs may.be"released-,.by pressing on the the frame adjacent thecoils 7 without withdrawing; the sharpened endl of thev other. prong from its socket or 5 and 6" merge from.

. obtuse angles,

spring coils, a

keeper. It is obvious that either one of the sockets or keepers 10 in Fig. 1 may be made longer than the other, in order to accomplish this result.

While Fig. 2 is shown. and-described as being a section on line 22 of Fig. 1, it is to be understood that the keepers or sockets *libinFig: '2 are'd'es'ignedof the same length, andthe prongs 9 of the frame. The portions 6 of both sides itsv socket or keeper, for disengaging the other lsaccomplished; by constructing the prongs of different lengths, and. correspondingly forming the-sockets or keepers, designated by the numeral 10. In thisconstruction, it is obvious that by applying pressure on the opposite sides of the frame, one or the other of the prongs disengaged from its keeper,.w1th0ut disengaging. the other prong. By constructing theprongs, so that'one or the other may disengage from its keeper, without withdrawing the sharpened; point of the other. prong, permits the retained prong; to remain fastened tothe garment. However, a greater pressureon the opposite sides of the frame near the coils 7, would also releasethe-longer prong, as. Well. as the shorter prong. It is the aimthat the sidesof the frame, that are in parallelism with each other, are designed to: be arranged. in the same plane in edge View: as seen in Fi The invention having; beenrset. 5 what is claimed as new and usefulis:

1. In an, invisible pin, a: framecomprising opposite sides having, portions extending" at said-asides, from where the portions extend at such.

pair of prongs carried by one end; of the, frame, normally urging laterally in opposite directions, the other end of the framehaving spring means and provided; with keepers, adapted: for the reception. of the terminals: of the prongs, whereby when pressure is applied on the opposite sides of the frame in a plane at right anglesto the laterally urging' action of the prongs, the terminals ofthe may be withdrawnfrom the keepers.

2. An invisible pin constructed from a single length" of! spring wire, the central portion. of the body of'which being: turned to form a spring coil, holding means for the coil, the portions of the body of the wire 9 may be 2. orth,

angles having prongs beyond the spring coil being bent to form spring sides having portions at obtuse angles to each other, at the ploint where said obtuse angularly extending portions connect havin spring coils, the sides beyond the second spring coils at a point remote from the first spring coil being twisted together, and parts of the wire beyond the twist terminating in prongs having sharpened terminals, said holding means having keepers for the reception of the sharpened terminals.

In testimony whereof I hereunto aifix my signature in the presence of two witnesses.

DAVID LE ROY MANTLE.

Witnesses:

H. E. GUY, H. R. BROWN.

copies of this patent msy be obtsined for five cents each, by addressing the Commissioner of Patents,

Washington, D. 0." 

